Engineered Fluids has entered a strategic partnership with Dovetail Electric Aviation to co-develop an advanced immersion-cooled battery system tailored for electric aircraft. The initiative will integrate Engineered Fluids’ proprietary AmpCool AC-110 coolant into Dovetail’s patent-pending DovePack battery platform, purpose-built for aviation.
The immersion-cooled system is a core component of Dovetail’s electric propulsion systems, which are designed to transform conventional regional aircraft into zero-emission flyers. The technology promises to deliver enhanced thermal management to electric aircraft through the direct immersion of lithium battery cells in AmpCool fluid.
“Electric aviation cannot scale without lighter, safer, high capacity battery solutions, and that requires exacting thermal management at the battery level,” said Gary Testa, president and CEO of Engineered Fluids. “By fully immersing the lithium battery cells in AmpCool, we deliver dramatically better heat dissipation, eliminate thermal runaway propagation, and extend battery performance in the most regulated environment imaginable – flight.”
AmpCool’s unique properties – non-conductive, non-flammable and chemically stable – enable 1,600 times better thermal conductivity than air, while simplifying cooling system architecture. This approach eliminates the need for bulky heat sinks and complex thermal hardware, supporting lighter electric aircraft designs and greater range and payload capacity.
Currently finalising testing in Spain and Australia, the system has shown promising results. These trials are a key milestone in Dovetail’s certification roadmap for retrofitting existing aircraft with its zero-emission DovePack propulsion system. The tests have confirmed the battery’s ability to contain thermal events and sustain stable operation under extreme conditions using AmpCool AC-110.
Image: Immersion cooled battery system by Dovetail
